Do-ki successfully infiltrates Cheongeum with the help of his old crew. He pretends to be an abducted recruit but secretly searches for Dong-jae. During the search, he runs into Lim Bok-ja. He uses her revengeful anger to make it easier to find the missing boy. Just when he is about to capture the mastermind, a mysterious gun shot interrupts his arrest.
Quest roles:
Shim So-young(Lim Bok-ja), Cho Ji An(Lee Dong-jae), Park Seong-geun(Kim Hyeong-seob), Lee Kyu-ho(Kwon Du-sik), Yoon Seok-hyun(Sang-man), Lee Eun-joo(Jo Eun-hye), Kim Jo-yeon(Detective), Choi Won(Lee Jun-beom), Koo Ja-geon(Recruit)